Early entry dry cut saws cut the waiting period before sawing to as little as ________ in hot weather and about _________ in cold weather.

Early entry dry cut saws cut the waiting period before sawing to as little as ________ in hot weather and about _________ in cold weather.

• A. 1 hour, 4 hours
• B. 30 minutes, 2 hours
• C. 2 hours, 6 hours
• D. 4 hours, 8 hours

Answer: (A)

Early-entry dry-cut saws are designed to allow cutting joints earlier in the concrete’s life than traditional methods. Weather affects how quickly the surface gains enough strength and stability to be cut without causing damage. In hot weather, the concrete sets and firms up quickly, so the waiting period before sawing can be reduced to about one hour. In cold weather, hydration is slower, so you need a longer wait—about four hours—to avoid surface raveling, chipping, or unwanted cracking. So the best fit is roughly one hour in hot weather and about four hours in cold weather.

Early-entry dry-cut saws are designed to allow cutting joints earlier in the concrete’s life than traditional methods. Weather affects how quickly the surface gains enough strength and stability to be cut without causing damage. In hot weather, the concrete sets and firms up quickly, so the waiting period before sawing can be reduced to about one hour. In cold weather, hydration is slower, so you need a longer wait—about four hours—to avoid surface raveling, chipping, or unwanted cracking. So the best fit is roughly one hour in hot weather and about four hours in cold weather.